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Porsche // Cayman 718C (982C) 2017>> // Cayman 718 2.0L Manual (300 Bhp)
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Shock Absorber Additional Spring. Porsche 997 MKI and MKII, 996 IX74 / M030 - 99634398009
99634398009/2
Vehicle Group
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Information
Shock absorber additional spring. fits the FRONT Cars with SPORT chassis (Option code: I030/I480) one additional spring is required for each shock absorber, the price is each.
This is for the shock absorber as an additional spring, also known as a bump stop, stopper or helper spring, designed for the front strut assemblies on Porsche 997 models equipped with the Sport chassis (option codes I030 or I480). Front axle suspension assembly for Porsche 996/997 (1998–2012), serving as a rubber stop or bushing integrated into the strut structure.
Fits:
Porsche 997 C2 / C2S / C4 / C4S MKI 2005-08 - Cars with SPORT chassis (Option code: I030/I480)
Porsche 997 C2 / C2S / C4 / C4S MKII 2009-12 - Cars with SPORT chassis (Option code: I030)
Porsche 996 C2 / C2S / C4 / C4S - Cars with SPORT chassis (Option code: IX74 / M030)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634398009
The product you are viewing cross references to these numbers
This is for the shock absorber as an additional spring, also known as a bump stop, stopper or helper spring, designed for the front strut assemblies on Porsche 997 models equipped with the Sport chassis (option codes I030 or I480). Front axle suspension assembly for Porsche 996/997 (1998–2012), serving as a rubber stop or bushing integrated into the strut structure.
Fits:
Porsche 997 C2 / C2S / C4 / C4S MKI 2005-08 - Cars with SPORT chassis (Option code: I030/I480)
Porsche 997 C2 / C2S / C4 / C4S MKII 2009-12 - Cars with SPORT chassis (Option code: I030)
Porsche 996 C2 / C2S / C4 / C4S - Cars with SPORT chassis (Option code: IX74 / M030)
This acts as a progressive load-bearing element, cushioning the suspension when the strut nears full compression. It helps prevent harsh bottoming-out, protecting both the strut and chassis from damage during aggressive driving or over bumps.
These components maintain ride quality and handling performance, especially under heavy loading or spirited cornering, keeping the suspension linear and controlled.
Common Issues & Considerations
Wear or Deterioration: Over time, the rubber can compress, crack, or lose elasticity, diminishing its effectiveness. This can lead to harsher suspension impacts at full compression.
Noise or Harsh Feedback: A worn or hardened bump stop can transmit noise or impacts through the cabin, particularly over rough roads or speed bumps.
Sport vs. Standard Suspension: These parts are specific to Sport chassis models. Non-sport setups may not have the same bump stops or use different part numbers, so swapping or replacing must be done accordingly.
Click 'Zoom in' for large parts diagram.
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634398009
99634398009
The product you are viewing cross references to these numbers
Price: £17.50
In stock
Related products
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Information
Rennline Clubsport Camber Plate Top Mount Set.
SET OF 2
Fits:
Porsche 991/981/718 2WD except GT3/GT4
Whether you use your car on the street or the track, optimum camber settings are critical for both performance and tire wear during spirited street driving and at the track. These plates were designed for 991/981 owners looking to achieve additional camber without needing to change to GT3-style adjustable control arms. By using an offset bearing housing, the range of possible camber adjustment is shifted to provide an additional 1.1 degrees of camber at all OEM-equivalent settings.
These mounts are CNC machined in house from 6061-T6 billet aluminum for maximum strength while keeping weight to a minimum. Precision teflon lined bearings are held in place with a two-part threaded housing which eliminates the issues commonly associated with camber plates that utilize a snap ring such as excessive noise and premature failure. This also minimizes camber changes under load meaning you have more precise alignment settings when it matters most.
Designed specifically for cars using factory shocks and any aftermarket setup designed to work with OEM mounts, this is the easiest and simplest way to gain camber in your 991/981 car. In addition, by making camber changes at the top of the strut instead of at the control arm, caster changes are minimized resulting in an easier setup and minimizing necessary modifications.
• 1.1* increase in negative camber at factory settings results in greater range of adjustment
• CNC machined housings
• Fully compatible with factory and aftermarket shock/spring kits utilizing factory mounts
• Equalize tire wear and maximize traction at once
• Precision teflon-lined spherical bearing
• Reduced compliance results in more precise handling and alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
S54
The product you are viewing cross references to these numbers
SET OF 2
Fits:
Porsche 991/981/718 2WD except GT3/GT4
Whether you use your car on the street or the track, optimum camber settings are critical for both performance and tire wear during spirited street driving and at the track. These plates were designed for 991/981 owners looking to achieve additional camber without needing to change to GT3-style adjustable control arms. By using an offset bearing housing, the range of possible camber adjustment is shifted to provide an additional 1.1 degrees of camber at all OEM-equivalent settings.
These mounts are CNC machined in house from 6061-T6 billet aluminum for maximum strength while keeping weight to a minimum. Precision teflon lined bearings are held in place with a two-part threaded housing which eliminates the issues commonly associated with camber plates that utilize a snap ring such as excessive noise and premature failure. This also minimizes camber changes under load meaning you have more precise alignment settings when it matters most.
Designed specifically for cars using factory shocks and any aftermarket setup designed to work with OEM mounts, this is the easiest and simplest way to gain camber in your 991/981 car. In addition, by making camber changes at the top of the strut instead of at the control arm, caster changes are minimized resulting in an easier setup and minimizing necessary modifications.
• 1.1* increase in negative camber at factory settings results in greater range of adjustment
• CNC machined housings
• Fully compatible with factory and aftermarket shock/spring kits utilizing factory mounts
• Equalize tire wear and maximize traction at once
• Precision teflon-lined spherical bearing
• Reduced compliance results in more precise handling and alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
S54
99134301502
982199131
982199131D
The product you are viewing cross references to these numbers
Price: £707.00
Orderable
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Information
Rennline Race Spec Camber Plate FRONT Top Mount Set.
SET OF 2
Fits:
Porsche 991 / 981 / 718 2WD incl GT3/GT4 FRONT
If you are looking for maximum performance and adjustability from your 991/981 you are going to want to be in complete control of your camber settings. Designed to work with non-OEM suspension options such as JRZ, Moton and GT3/Cup struts, Rennline Race Spec Camber Plates will give you perfect combination of adjustability and durability.
this kit will fit the Cayman GT4 and 991 GT3 with OEM dampers.
These mounts are CNC machined in house from 6061-T6 billet aluminum for maximum strength while keeping weight to a minimum. Precision teflon lined bearings are held in place with a two-part threaded housing which eliminates the issues commonly associated with camber plates that utilize a snap ring such as excessive noise and premature failure. This also minimizes camber changes under load meaning you have more precise alignment settings when it matters most.
Designed for anyone from the weekend enthusiast to the dedicated track day veteren, these camber plates allow you to add camber in the optimum way. Swapping to GT3-style lower control arms can increase camber significantly, but it comes at the cost of reduced caster without replacing additional components. Our Race Spec Camber Plates solve this issue by adding camber at the top of the strut, minimizing geometry changes to other areas of the suspension system.
• 1.1* increase in negative camber
• CNC machined housings
• Designed for use with non-OEM style coilovers and struts
• Equalize tire wear and maximize traction at once
• Precision teflon-lined spherical bearing
• Reduced compliance results in more precise handling and alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
S55
The product you are viewing cross references to these numbers
SET OF 2
Fits:
Porsche 991 / 981 / 718 2WD incl GT3/GT4 FRONT
If you are looking for maximum performance and adjustability from your 991/981 you are going to want to be in complete control of your camber settings. Designed to work with non-OEM suspension options such as JRZ, Moton and GT3/Cup struts, Rennline Race Spec Camber Plates will give you perfect combination of adjustability and durability.
this kit will fit the Cayman GT4 and 991 GT3 with OEM dampers.
These mounts are CNC machined in house from 6061-T6 billet aluminum for maximum strength while keeping weight to a minimum. Precision teflon lined bearings are held in place with a two-part threaded housing which eliminates the issues commonly associated with camber plates that utilize a snap ring such as excessive noise and premature failure. This also minimizes camber changes under load meaning you have more precise alignment settings when it matters most.
Designed for anyone from the weekend enthusiast to the dedicated track day veteren, these camber plates allow you to add camber in the optimum way. Swapping to GT3-style lower control arms can increase camber significantly, but it comes at the cost of reduced caster without replacing additional components. Our Race Spec Camber Plates solve this issue by adding camber at the top of the strut, minimizing geometry changes to other areas of the suspension system.
• 1.1* increase in negative camber
• CNC machined housings
• Designed for use with non-OEM style coilovers and struts
• Equalize tire wear and maximize traction at once
• Precision teflon-lined spherical bearing
• Reduced compliance results in more precise handling and alignment
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
S55
99134301502
982199131D
982199131
The product you are viewing cross references to these numbers
Price: £633.00
In stock
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
Information
Shock absorber upper strut mount. Front.
Fits:
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16
Porsche 991.2 C2 / C2S / C4 / C4S 017>>
Porsche 991 Turbo 2014>>
Porsche 981 Boxster 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 981C Cayman 2014-16
Porsche 982C Cayman 2017>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134301502
The product you are viewing cross references to these numbers
Fits:
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16
Porsche 991.2 C2 / C2S / C4 / C4S 017>>
Porsche 991 Turbo 2014>>
Porsche 981 Boxster 2012-16
Porsche 982 (718) Boxster 2017>>
Porsche 981C Cayman 2014-16
Porsche 982C Cayman 2017>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134301502
99134301502
The product you are viewing cross references to these numbers
Price: £345.95
In stock
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
Information
Front shock absorber bump stop.
The Genuine OE Porsche front shock absorber bump stop, part number 99134330103, is an original Porsche suspension component designed to protect the front shock absorber assembly from excessive compression under heavy suspension load. Installed on the front suspension strut, this high-quality polyurethane/rubber stop acts as a secondary cushioning element, helping to prevent metal-to-metal contact during aggressive driving, hard braking, uneven road surfaces, or full suspension travel.
Sold individually, 2 required - fits left or right suspension strut
Fits:
Porsche 981 Boxster 2012 - 2016 cars with PASM
Porsche 981C Cayman 2014 - 2016 cars with PASM
Porsche 982 Boxster 2017>> cars with PASM
Porsche 982C Cayman 2017>> cars with PASM
Porsche 991.1 Carrera / Turbo 2012 - 2016 cars with PASM (excluding standard and sport type chassis)
Porsche 991.2 Carrera / Turbo 2017 - 2019 cars with PASM (excluding standard and sport type chassis)
Diagram ref no 6
This component is essential for maintaining ride quality, suspension stability, and correct shock absorber operation. Over time, bump stops can deteriorate due to heat cycles, age, moisture, and repeated suspension compression, leading to cracking, collapse, or reduced cushioning performance. Replacing worn bump stops helps restore proper suspension protection and ensures the shock absorber can operate correctly throughout its full range of movement.
Functions & Technical Role
• Protects the front shock absorber during full suspension compression
• Prevents harsh bottoming-out impacts
• Helps maintain correct suspension geometry under load
• Reduces shock absorber and strut damage caused by excessive travel
• Assists with vibration damping and ride refinement
• Supports optimal PASM suspension performance
• OE-quality material construction for long-term durability
Fitment / Position on car
• Front suspension
• Fits left or right side
• Mounted on the front shock absorber/strut assembly
The front bump stop is a critical protective component within the Porsche suspension system. During heavy cornering, sudden impacts, aggressive driving, or rough road conditions, the suspension can compress rapidly. Without a properly functioning bump stop, excessive suspension travel can damage the shock absorber, strut mount, spring assembly, and other suspension components.
A deteriorated or collapsed bump stop may also lead to harsh suspension noises, reduced ride comfort, poor damping control, and premature shock absorber wear. Replacing worn bump stops with Genuine Porsche components helps maintain factory suspension performance, protects expensive suspension hardware, and preserves the precise handling characteristics Porsche vehicles are known for.
When to replace. Replace the front shock absorber bump stop if you notice:
• Cracked, split, or crumbling rubber material
• Suspension knocking or bottoming-out noises
• Excessive harshness over bumps
• Oil leaks or damage around the shock absorber
• Suspension overhaul or shock absorber replacement
• Visible compression damage or deterioration
• Reduced suspension damping performance
• High mileage or ageing suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134330103
The product you are viewing cross references to these numbers
The Genuine OE Porsche front shock absorber bump stop, part number 99134330103, is an original Porsche suspension component designed to protect the front shock absorber assembly from excessive compression under heavy suspension load. Installed on the front suspension strut, this high-quality polyurethane/rubber stop acts as a secondary cushioning element, helping to prevent metal-to-metal contact during aggressive driving, hard braking, uneven road surfaces, or full suspension travel.
Sold individually, 2 required - fits left or right suspension strut
Fits:
Porsche 981 Boxster 2012 - 2016 cars with PASM
Porsche 981C Cayman 2014 - 2016 cars with PASM
Porsche 982 Boxster 2017>> cars with PASM
Porsche 982C Cayman 2017>> cars with PASM
Porsche 991.1 Carrera / Turbo 2012 - 2016 cars with PASM (excluding standard and sport type chassis)
Porsche 991.2 Carrera / Turbo 2017 - 2019 cars with PASM (excluding standard and sport type chassis)
Diagram ref no 6
This component is essential for maintaining ride quality, suspension stability, and correct shock absorber operation. Over time, bump stops can deteriorate due to heat cycles, age, moisture, and repeated suspension compression, leading to cracking, collapse, or reduced cushioning performance. Replacing worn bump stops helps restore proper suspension protection and ensures the shock absorber can operate correctly throughout its full range of movement.
Functions & Technical Role
• Protects the front shock absorber during full suspension compression
• Prevents harsh bottoming-out impacts
• Helps maintain correct suspension geometry under load
• Reduces shock absorber and strut damage caused by excessive travel
• Assists with vibration damping and ride refinement
• Supports optimal PASM suspension performance
• OE-quality material construction for long-term durability
Fitment / Position on car
• Front suspension
• Fits left or right side
• Mounted on the front shock absorber/strut assembly
The front bump stop is a critical protective component within the Porsche suspension system. During heavy cornering, sudden impacts, aggressive driving, or rough road conditions, the suspension can compress rapidly. Without a properly functioning bump stop, excessive suspension travel can damage the shock absorber, strut mount, spring assembly, and other suspension components.
A deteriorated or collapsed bump stop may also lead to harsh suspension noises, reduced ride comfort, poor damping control, and premature shock absorber wear. Replacing worn bump stops with Genuine Porsche components helps maintain factory suspension performance, protects expensive suspension hardware, and preserves the precise handling characteristics Porsche vehicles are known for.
When to replace. Replace the front shock absorber bump stop if you notice:
• Cracked, split, or crumbling rubber material
• Suspension knocking or bottoming-out noises
• Excessive harshness over bumps
• Oil leaks or damage around the shock absorber
• Suspension overhaul or shock absorber replacement
• Visible compression damage or deterioration
• Reduced suspension damping performance
• High mileage or ageing suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99134330103
99134330103
The product you are viewing cross references to these numbers
Price: £41.64
In stock